| English | eng-000 |
| noise suppression circuit | |
| 普通话 | cmn-000 | 噪声抑制电路 |
| English | eng-000 | Percival circuit |
| English | eng-000 | muting circuit |
| English | eng-000 | noise limiting circuit |
| English | eng-000 | noise suicide circuit |
| English | eng-000 | noise suppression circuitry |
| English | eng-000 | squelch circuit |